Manufacture of wire



MANUFACTURE OF WIRE Qriginal Filed March 31, 1935 INVENTORQ J05 GASSf/VA TTORNEY Patented Nov. 1935 MANUFACTURE OF WIRE Josef Gassen,Dusseldorf-Oberkassel, Germany,

assignor to Schloemann- Aktiengesellschaft, Dusseldorf, Germany, acorporation of Germany Original application March 31, 1933, ,Serial No.

663,751. Divided and this application October 20, 1933, Serial No.694,396. In Germany June 3 ClaimS-, (Cl. 14821) My invention relates tothe manufacture of wire and more especially wire known as waterwire suchas principally used in the production of bed-springs, and the object ofmy invention is to produce a wire of this kind having a uniform temper,such as described in my application, Serial No. 663,751, filed on March31, 1933, of which application this is a division.

There are in use several methods of manufacturing such wire. Accordingto one of the most widely used methods, one permits the wound-up wirebundle to drop from the spool-basket into a water tank. Another methodconsists in this that the wire on its way from the wire-roll to thespool passes through the cooling water on the counter-current principle.Also, water has been admitted during the winding operation to theinterior of the spool-basket through large pipes. Or, water has beenadmitted to the interior of the spool-basket after the winding has beenfinished so as to chill the wire bundle before its removal from thespool-basket.

While by all these various methods the wire has been more or lesscooled, there has been considerable complaint, that the cooling does notproceed uniformly with the result that the quality of the finished wireis thereby greatly affected.

To overcome this serious drawback, I have devised a novel method,whereby the wire is very uniformly cooled, so that a wire of very highquality is produced. This object I attain in directing against the wirebundle in the spool basket a large number of fine water-jets, thecooling effect of which is increased by the centrifugal action producedby the rapid revolutions of the spoolbasket. In this manner, the coolingwater is continually brought into contact with the wire at a very largenumber of places. Because of the effect of the centrifugal actionreferred to, a portion of the cooling water is forced outwards throughthe various convolutions of the wire in the spool-basket cooling alsothe latter as Well as the surrounding wall, while the major portion,

due to the same centrifugal action, is upwardly displaced along theouter wall of the spool-basket to enter a gutter in the cover of thespool-basket in which cover the flow of the cooling water is reversed sothat it flows back into the spool-basket, to again impart its coolingeffect to the bundle of wire in the basket.

On the annexed drawing, on which by way of illustration, I have shown ameans for practising my invention, the single figure shows said meanspartly in central vertical section.

At I is shown the spool-basket secured to a rotatable vertical shaft 2driven from any desired source of power. The space in which the wireshown at 3 is wound up, is formed by two walls, to wit the'inner wall 4and the outer wall 5. In its center, the spool-basket is provided with ahollow space 6.

The inner wall 4 of the spool-basket is provided with numerous bores Iforming spray-nozzles, while similar bores 8, but of a smallercross-sectional area than the bores I, are provided in the 10 outer wall5. The rotatable spool-basket I is enclosed in a stationary casing 9carried by a standard II). The casing is provided with an inclinedbottom shown at I I, in which at I2 is provided a circular gap. 15

While the spool-basket containing the wouhdup wire is being rapidlyrotated, cooling water is admitted through the supply-nozzle I5 to theinner hollow space 6. The water striking the hub-cap I1 is spread in alldirections. Be- 30 cause of the effect of centrifugal action, producedby the rapidly revolving basket I, the water enters the same through thenumerous small bores 1 in the form of a spray penetrating between thevarious convolutions of the wire 3. A portionof the cooling water passesoutwardly through the smaller bores 8 in the outer wall of the basketand fiows down in the space between said outer wall and the wall ofcasing 9 cooling also the latter and escaping through the circular gapI2, flowing down over the standard III which is thus likewise cooled bythe cooling water. The major portion of the water, because the bores 8are finer than the bores I, because of the centrifugal action, is forcedupwards as shown at I8 entering the inverted gutter I4 in the annularcover I3. The gutter is so shaped, that the flow of the Water is therebyreversed, so that the water flows back into the spool-basket to againact as cooling water 5 for the wire in the basket. In this manner, avery uniform cooling of the entire bundle of wire is effected.

Obviously, the supply of water through the supply nozzle I5 can beregulated, depending 55 of the coil, and simultaneously rotating thecoil rapidly in its own plane to increase the coil penetrating effect ofthe liquid.

2. In the manufacture of wire, the method of quenching the same whichcomprises directing jets of a cooling liquid from points within a coilof wire outwardly against the inner side of the coil, simultaneouslyrotating the coil rap-" idly to cause the liquid to flow outwardlythrough the coil, and returning at least some of the liduid from theouter side to the inner side of the coil and again directing it throughthe coil.

3. In the manufacture of wire, the method of quenching the same whichcomprises directing jets of 'a cooling liquid from points ,within a coilof wire outwardly against the inner side of the coil, simultaneouslyrotating the coil rapidly to cause the liquid to flow outwardlythroughthe coil, directing to Waste part of the liquid 10 h after it has passedthrough the coil, and returning theremainder of the liquid to the innerside of the coil and again directing it against the inner side of thecoil.

JOSEF GASSEN.

